Hi and congrats on the 10!
I understand what you mean about not wanting weightloss to be your life - you don't want it to consume you. That's why I focus on something sustainable, fad diets DON'T work for me because I know I will miss certain foods. I have found WW to be especially happy in the past because it helps you to eat what you like but in moderation - it's a lifestyle shift verses fad diet. IMO
For now I am just watching my intake and trying to find healthier alternatives for my snacking and adding exercise which has been sorely lacking in my life.
I would suggest two things: don't give up! and Yes, please make sure you are eating enough! If you are not giving your body enough, it will think you are "starving" and switch your body into save mode, hoarding any fat you bring in.
Perhaps you need to also vary your diet a bit more and change your exercise routines.